Exploits similar to the raise-reset exploit on moogle and exploits with much less impact on the fights mechanics have resulted in bans and removal of items/achievements in other established MMO's and for good reason.
If you can do it the legitimate way than why not do it? simple answer is that it is easier to exploit the encounter and it seems like a decent chunk of the community of this game have no qualms about breaking the mechanics of the fight to benefit them which is extremely sad.